1998 Other Chevrolet Models truck turns over but won't start

Tiny
JEFFELECTRIC
  • MEMBER
  • 1998 CHEVROLET
  • V8
  • 4WD
  • AUTOMATIC
  • 105,000 MILES
I have a chevrolet K1500 4 wheel drive pick-up with a 5.7 engine. Once in a while when I took the truck for a ride, when I returned back home in a while I would try to start the truck again but it would just turn over but not start. This started happening more often until now the truck won't start at all. I changed the fuel pressure switch, the fuel pump relay and the complete full pump assy. Even though I was getting spark I changed the cap and rotor anyway, I also checked the crank pos. Sencer and it was ok. When I put gas into the throttle body the truck will run until the gas runs out of the throttle body. I have also changed the fuel filter. I don't know where to go from here.
Friday, July 30th, 2010 AT 8:55 PM

8 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
First of all thank you so much for your donation. Is there anyway you could rent a code reader and see if you have any code's?Also have you checked your fuel pressure yet or have you checked to see if your injector's are pulsing?
Was this
answer
helpful?
Yes
No
Friday, July 30th, 2010 AT 9:09 PM
Tiny
JEFFELECTRIC
  • MEMBER
  • 12 POSTS
Hi Louie, My codes are clear and the fuel pump is putting out 64 psi. I would have to take off the top intake manfold to get at the fuel injectors. This truck has Central Sequential Fuel Injection ( Central SFI System ). Is it possible that the injectors are not getting the gas to them?

Thanks
Was this
answer
helpful?
Yes
No
Saturday, July 31st, 2010 AT 4:03 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Was this
answer
helpful?
Yes
No
Saturday, July 31st, 2010 AT 7:51 PM
Tiny
JEFFELECTRIC
  • MEMBER
  • 12 POSTS
The 8th diget is R.
Was this
answer
helpful?
Yes
No
Sunday, August 1st, 2010 AT 11:07 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS


https://www.2carpros.com/forum/automotive_pictures/416332_1998_chevy_pick_up_cranks_but_wont_start_part1_1.jpg



https://www.2carpros.com/forum/automotive_pictures/416332_1998_chevy_pick_up_cranks_but_wont_start_part2_1.jpg



https://www.2carpros.com/forum/automotive_pictures/416332_1998_chevy_pick_up_cranks_but_wont_start_part3_1.jpg


Alright follow the crank but won't run trouble tree it will bring you to testing the fuel system.Let me know what you find.
Was this
answer
helpful?
Yes
No
-1
Monday, August 2nd, 2010 AT 12:57 AM
Tiny
JEFFELECTRIC
  • MEMBER
  • 12 POSTS
The wiring diagrams that you e-mailed were were blurry and could not read them even at the small print. Would it be possible to send them at a larger format.
Thanks
Was this
answer
helpful?
Yes
No
Monday, August 2nd, 2010 AT 9:10 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
I emailed it all to you that should help.
Was this
answer
helpful?
Yes
No
Monday, August 2nd, 2010 AT 11:40 AM
Tiny
JIMMY LAIRSEY
  • MEMBER
  • 2 POSTS
Crankcase position sensor little brass looking sensor on the bottom of engine right on the side of the crankshaft if gets oily from a leak it will go out and it won't crank at all.
Was this
answer
helpful?
Yes
No
Wednesday, December 22nd, 2021 AT 7:12 AM

Please login or register to post a reply.

Sponsored links